For the construction industry to improve quality the first step is to improve the planning. To improve the planning you need quality in your data and your drawings. To improve the drawings one element is to involve all stakeholders in a project being different trades, engineers, contractors, owner, architects and more.
Team members from external and internal resources can collaborate and give input to a drawing. All markups are stored as different user layers and support being part of a approval and quality process in other software solutions.